計算ゲーム・トレーニング

It is a game that solves calculation problems (four arithmetic operations) by level. Free.
You can enjoy various difficulty levels from easy to difficult.
You can expect effects such as improving calculation ability, improving calculation ability, brain training, SPI countermeasures, blur prevention, and faster brain rotation!

Two players can also play using one terminal.

You can also see the daily record in a graph.